Mitsubishi Electric MELSEC Q Series Manuale utente

User's Manual

(Hardware)

Q02CPU-A

Q02HCPU-A

Q06HCPU-A

Thank you for purchasing the Mitsubishi Electric programmable

controller MELSEC-Q series.

QCPU(A mode)

CPU Module

Prior to use, please read this and relevant manuals thoroughly to

fully understand the product.

MODEL QCPU-A(A)-U-H/W-E

MODEL

CODE 13JR04

IB(NA)-0800084-P(1904)MEE

A-1

SAFETY PRECAUTIONS

(Read these precautions before using this product.)

Before using this product, please read this manual and the relevant manuals

carefully and pay full attention to safety to handle the product correctly.

In this manual, the safety precautions are classified into two levels:

" WARNING" and " CAUTION".

Under some circumstances, failure to observe the precautions given under

" CAUTION" may lead to serious consequences.

Observe the precautions of both levels because they are important for personal

and system safety.

Make sure that the end users read this manual and then keep the manual in a safe

place for future reference.

WARNING Indicates that incorrect handling may cause

hazardous conditions, resulting in death or severe

injury.

Indicates that incorrect handling may cause

hazardous conditions, resulting in minor or moderate

injury or property damage.

CAUTION

A-2

[DESIGN PRECAUTIONS]

WARNING

●Configure safety circuits external to the programmable controller to ensure

that the entire system operates safely even when a fault occurs in the external

power supply or the programmable controller. Failure to do so may result in an

accident due to an incorrect output or malfunction.

(1) Configure external safety circuits, such as an emergency stop circuit,

protection circuit, and protective interlock circuit for forward/reverse

operation or upper/lower limit positioning.

(2) When the programmable controller detects the following error conditions,

it stops the operation and turn off all the outputs.

• Overcurrent or overvoltage protection of the power supply module is

activated.

• The CPU module detects an error such as a watchdog timer error by

the self-diagnostics function.

All outputs may turn on when an error occurs in the part, such as I/O

control part, where the CPU module cannot detect any error. To

ensure safety operation in such a case, provide a safety mechanism

or a fail-safe circuit external to the programmable controller. For a fail-

safe circuit example, refer to Chapter 4 LOADING AND

INSTALLATION in this manual.

(3) Outputs may remain on or off due to a failure of an output module relay or

transistor. Configure an external circuit for monitoring output signals that

could cause a serious accident.

●In an output module, when a load current exceeding the rated current or an

overcurrent caused by a load short-circuit flows for a long time, it may cause

smoke and fire. To prevent this, configure an external safety circuit, such as a

fuse.

●Configure a circuit so that the programmable controller is turned on first and

then the external power supply. If the external power supply is turned on first,

an accident may occur due to an incorrect output or malfunction.

●For the operating status of each station after a communication failure, refer to

relevant manuals for the network.

Incorrect output or malfunction due to a communication failure may result in

an accident.

A-3

[DESIGN PRECAUTIONS]

WARNING

●When controlling a running programmable controller from a peripheral

connected to the CPU module or from a personal computer connected to a

special function module, configure an interlock circuit in the sequence

program to ensure that the entire system will always operate safely.

For program modification and operating status change, read relevant manuals

carefully and ensure the safety before operation.

Especially, in the case of a control from an external device to a remote

programmable controller, immediate action cannot be taken for a problem on

the programmable controller due to a communication failure.

To prevent this, configure an interlock circuit in the sequence program, and

determine corrective actions to be taken between the external device and

CPU module in case of a communication failure.

●When setting up the system, do not allow any empty slot on the base unit.

If any slot is left empty, be sure to use a blank cover (A1SG60) or a dummy

module (A1SG62) for it.

Otherwise, internal parts of the module may be flied in the short circuit test or

when an overcurrent or overvoltage is accidentally applied to the external I/O

section.

CAUTION

●Do not install the control lines or communication cables together with the main

circuit lines or power cables.

Keep a distance of 100mm (3.9inches) or more between them.

Failure to do so may result in malfunction due to noise.

●When a device such as a lamp, heater, or solenoid valve is controlled through

an output module, a large current (approximately ten times greater than

normal) may flow when the output is turned from off to on. Take measures

such as replacing the module with one having a sufficient current rating.

●After the CPU module is powered on or is reset, the time taken to enter the

RUN status varies depending on the system configuration, parameter

settings, and/or program size.

Design circuits so that the entire system will always operate safely, regardless

of the time.

A-4

[INSTALLATION PRECAUTIONS]

CAUTION

●Use the programmable controller under the environment that meets the

general specifications in this manual.

Failure to do so may result in electric shock, fire, malfunction, or damage to or

deterioration of the product.

●To mount the CPU module, while pressing the module mounting lever located

in the lower part of the module, fully insert the module fixing projection(s) into

the hole(s) in the base unit and press the module until it snaps into place.

Incorrect mounting may cause malfunction, failure or a drop of the module.

When using the programmable controller in an environment of frequent

vibrations, fix the module with the screw.

Tighten the screw within the specified torque range.

Undertightening can cause drop of the screw, short circuit or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short

circuit, or malfunction.

●Insert securely the module fixing projection at the bottom of the AnS series

module into the fixing hole in the base unit and then tighten the module fixing

screw within the specified torque.

When no screw is tightened, even if the module is installed correctly, it may

cause malfunctions, a failure or a drop of the module.

Tightening the screw excessively may damage the screw and/or the module,

resulting in a drop of the module, a short circuit or malfunctions.

●When using an extension cable, connect it to the extension cable connector of

the base unit securely.

Check the connection for looseness.

Poor contact may cause incorrect input or output.

●When using a memory card, fully insert it into the memory card slot.

Check that it is inserted completely.

Poor contact may cause malfunction.

●Shut off the external power supply for the system in all phases before

mounting or removing the module.

Failure to do so may result in damage to the product.

●Do not directly touch any conductive part of the module.

Doing so can cause malfunction or a failure of the module.

A-5

[WIRING PRECAUTIONS]

WARNING

●Shut off the external power supply for the system in all phases before wiring.

Failure to do so may result in electric shock or damage to the product.

●After wiring, attach the included terminal cover to the module before turning it

on for operation.

Failure to do so may result in electric shock.

CAUTION

●Ground the FG and LG terminals to the protective ground conductor

dedicated to the programmable controller.

Failure to do so may result in electric shock or malfunction.

●Use applicable solderless terminals and tighten them with the specified torque

range. If any solderless terminal is used, it may be disconnected when the

terminal screw comes loose, resulting in failure.

●Check the rated voltage and terminal layout before wiring to the module, and

connect the cables correctly.

Connecting a power supply with a different voltage rating or incorrect wiring

may cause a fire or failure.

●Do not connect multiple power supply modules to one module in parallel. The

power supply modules may be heated, resulting in a fire or failure.

●Connectors for external connection must be crimped or pressed with the tool

specified by the manufacturer, or must be correctly soldered.

Incomplete connections could result in short circuit, fire or malfunction.

●Tighten the terminal screws within the specified torque range.

Undertightening can cause short circuit, fire, or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short

circuit, or malfunction.

●Prevent foreign matter such as dust or wire chips from entering the module.

Such foreign matter can cause a fire, failure or malfunction.

●A protective film is attached to the top of the module to prevent foreign matter,

such as wire chips, from entering during wiring.

Do not remove the film during wiring.

Remove it for heat dissipation before system operation.

A-6

[WIRING PRECAUTIONS]

[STARTUP AND MAINTENANCE PRECAUTIONS]

CAUTION

●Mitsubishi programmable controllers must be installed in control panels.

Connect the main power supply to the power supply module in the control

panel through a relay terminal block.

Wiring and replacement of a power supply module must be performed by

maintenance personnel who is familiar with protection against electric shock.

(For the wiring methods, refer to QCPU (A mode) User's Manual.)

WARNING

●Do not touch any terminal while power is on.

Doing so will cause electric shock.

●Correctly connect the battery connector. Do not charge, disassemble, heat,

short-circuit, solder, or throw the battery into the fire.

Doing so will cause the battery to produce heat, explode, or ignite, resulting in

injury and fire.

●Shut off the external power supply for the system in all phases before cleaning

the module or retightening the terminal screws or module fixing screws.

Failure to do so may result in electric shock.

Undertightening the terminal screws can cause short circuit or malfunction.

Overtightening can damage the screw and/or module, resulting in drop, short

circuit, or malfunction.

CAUTION

●Before performing online operations (especially, program modification, forced

output and operating status change) for the running CPU module from the

peripheral connected, read relevant manuals carefully and ensure the safety.

Improper operation may damage machines or cause accidents.

●Do not disassemble or modify the modules.

Doing so may cause failure, malfunction, injury, or a fire.

●Use any radio communication device such as a cellular phone or PHS

(Personal Handy-phone System) more than 25cm (9.84inches) away in all

directions from the programmable controller.

Failure to do so may cause malfunction.

A-7

[STARTUP AND MAINTENANCE PRECAUTIONS]

[DISPOSAL PRECAUTIONS]

[TRANSPORTATION PRECAUTIONS]

CAUTION

●Shut off the external power supply for the system in all phases before

mounting or removing the module. Failure to do so may cause the module to

fail or malfunction.

●After the first use of the product, do not perform each of the following

operations more than 50 times (IEC 61131-2/JIS B 3502 compliant):

• Mounting/removing the module to/from the base unit

• Mounting/removing the terminal block to/from the module

Exceeding the limit may cause malfunction.

●Do not drop or apply any shock to the battery to be installed in the module.

Doing so may damage the battery, causing the battery fluid to leak inside the

battery. If the battery is dropped or any shock is applied to it, dispose of it

without using.

●Before handling the module, touch a grounded metal object to discharge the

static electricity from the human body.

Failure to do so may cause the module to fail or malfunction.

CAUTION

●When disposing of the product, treat it as an industrial waste.

When disposing of batteries, separate them from other wastes according to

the local regulations.

(For details of the Battery Directive in EU member states, refer to QCPU-A (A

mode) User's Manual.)

CAUTION

●When transporting lithium batteries, follow the transportation regulations. (For

details of the regulated models, refer to Chapter 7.)

A-8

PRÉCAUTIONS DE SÉCURITÉ

(Lire ces précautions avant toute utilisation du produit.)

Avant d'utiliser ce produit, lire attentivement ce manuel ainsi que les manuels

auxquels il renvoie, et toujours considérer la sécurité comme de la plus haute

importance en manipulant le produit correctement.

Dans ce manuel, les précautions de sécurité sont classées en deux niveaux, à

savoir : " AVERTISSEMENT" et " ATTENTION".

Dans certaines circonstances, le non-respect d'une précaution de sécurité

introduite sous le titre " ATTENTION" peut avoir des conséquences graves.

Les précautions de ces deux niveaux doivent être observées dans leur intégralité

car elles ont trait à la sécurité des personnes et aussi du système.

Veiller à ce que les utilisateurs finaux lisent ce manuel qui doit être conservé

soigneusement à portée de main pour s'y référer autant que de besoin.

AVERTISSEMENT

Attire l'attention sur le fait qu'une négligence peut

créer une situation de danger avec risque de mort

ou de blessures graves.

Attire l'attention sur le fait qu'une négligence peut

créer une situation de danger avec risque de

blessures légères ou de gravité moyennes ou

risque de dégâts matériels.

ATTENTION

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